While mowing hay today with my 2150 my tach stopped working and almost immediately the instrument cluster filled up with smoke.
The engine was running normal so I unhitched the haybine and took the tractor back to the house. After I shut her down I tried to restart and nothing.
Anybody else ever run into this? What am I looking at to fix her up?

I had time to tear things apart and here's what I found.
Both batteries are swelled out on the sides and bone dry of battery acid. For the past couple weeks while using the tractor I kept smelling sulfur or rotten egg smell. Couldn't figure out what it was, now I'm assuming it was the batteries?? Could this be from over charging? So if so is the alternator/regulator to blame? Could this over charging have taken out my gauge cluster? I was able to find a cluster on Ebay but need some advise before I buy an alternator.

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